Test plug



FIG. 1 is a top plan view of the test plug of the present invention;

FIG. 2 is a bottom plan view of the test plug of FIG. 1;

FIG. 3 is a left side plan view of the test plug of FIG. 1;

FIG. 4 is a right side plan view of the test plug of FIG. 1;

FIG. 5 is a rear plan view of the test plug of FIG. 1;

FIG. 6 is a front plan view of the test plug of FIG. 1;

FIG. 7 is a front and left side perspective view of the test plug of FIG. 1;

FIG. 8 is a rear and right side perspective view of the test plug of FIG. 1; and,

FIG. 9 is a rear and left side perspective view of the test plug of FIG. 1.

We disclaim the features shown in dashed lines. 

The ornamental design for a test plug, as shown and described. 